Ayman Hariri is one of the youngest billionaires in the world, which is largely due to the stake he inherited in construction giant Saudi Oger from his late father – a former Lebanese prime minister who was assassinated while in office in 2005.

It is one of the giants of the Saudi market, having completed huge projects in recent years like King Abdullah University of Science & Technology (KAUST) in Thuwal and Princess Noura Bint Abdulrahman University for Women in Riyadh.

The firm is busily attempting to build its presence in the facilities management sector, and it is continuing work on a number of ongoing mega-projects such as the $480mn King Abdulaziz Centre for World Culture in Dharhan and the first privately-financed airport in the Kingdom – the new $1.4bn Madinah Airport being built in a consortium with Turkey’s TAV and Al Rajhi Group. It is also building a pair of towers (one office and one hotel) at King Abdullah Financial District, where it has subcontracted Bombardier to carry out the electrical and mechanical elements for a six-station monorail system.

Meanwhile, in the UAE it is continuing its work as part of a joint venture with Arabtec and Constructora San Jose on building the Louvre Abu Dhabi at Saadiyat Island.

Saudi Oger recently opened two institutes in Riyadh to provide training to young Saudi men and women.